Total Hi Def Disc, also called Total HD or THD, was a planned optical disc

Optical disc

In computing and optical disc recording technologies, an optical disc is a flat, usually circular disc which encodes binary data in the form of pits and lands on a special material on one of its flat surfaces...

 format that included both of the rival high-definition optical disc formats

Comparison of high definition optical disc formats

This article compares the technical specifications of multiple high definition formats, including HD DVD and Blu-ray Disc; two mutually incompatible, high definition optical disc formats that, beginning in 2006, attempted to improve upon and eventually replace the DVD standard...

, Blu-ray Disc

Blu-ray Disc

Blu-ray Disc is an optical disc storage medium designed to supersede the DVD format. The plastic disc is 120 mm in diameter and 1.2 mm thick, the same size as DVDs and CDs. Blu-ray Discs contain 25 GB per layer, with dual layer discs being the norm for feature-length video discs...

 and HD DVD

HD DVD

HD DVD is a discontinued high-density optical disc format for storing data and high-definition video.Supported principally by Toshiba, HD DVD was envisioned to be the successor to the standard DVD format...

. It was officially announced January 8, 2007 at the Warner Bros.

Warner Bros.

Warner Bros. Entertainment, Inc., also known as Warner Bros. Pictures or simply Warner Bros. , is an American producer of film and television entertainment.One of the major film studios, it is a subsidiary of Time Warner, with its headquarters in Burbank,...

 press conference held at CES 2007

Consumer Electronics Show

The International Consumer Electronics Show is a major technology-related trade show held each January in the Las Vegas Convention Center, Las Vegas, Nevada, United States. Not open to the public, the Consumer Electronics Association-sponsored show typically hosts previews of products and new...

. One side was to contain a single or dual-layer Blu-ray Disc, and the other was to contain a single or dual-layer HD DVD.

However, in November 2007, Warner Brothers put development of the Total HD discs on hold for an indefinite amount of time after several delays. Warner announced one of the reasons for doing so as a lack of interest in it from other major studios. Finally, on January 4, 2008, Warner Bros. Pictures announced that they were discontinuing HD DVD support, putting an end to THD's development.

See also

• DualDisc
  DualDisc
  DualDisc was a type of double-sided optical disc product developed by a group of record companies including EMI Music, Universal Music Group, Sony/BMG Music Entertainment, Warner Music Group, and 5.1 Entertainment Group and later under the aegis of the Recording Industry Association of America...
  
   and DVDplus
  DVDplus
  The DVDplus is a dual-sided disc similar to the DualDisc. It is an optical disc storage technology that combines the technology of DVD and CD in one disc. A DVD and a CD-compatible layer are bonded together to provide a multi-format hybrid disc...
  
    – two technologies for combining CDs
  Compact Disc
  The Compact Disc is an optical disc used to store digital data. It was originally developed to store and playback sound recordings exclusively, but later expanded to encompass data storage , write-once audio and data storage , rewritable media , Video Compact Discs , Super Video Compact Discs ,...
  
   and DVD
  DVD
  A DVD is an optical disc storage media format, invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. DVDs offer higher storage capacity than Compact Discs while having the same dimensions....
  
  s